Hi Saman,
On 2015年02月24日 16:42, saman biook aghazadeh wrote:
> Hello everyone,
>
> I'm looking for a RYU code example, which uses the Pipeline processing
> feature of the switch,
> but I couldn't find one. Could somebody provide a simple code which shows how
> to do pipelining?
I couldn't find one too, from Ryu Sample Apps (e.g. ryu/app/*)
How about the following?
---------
@set_ev_cls(ofp_event.EventOFPSwitchFeatures, CONFIG_DISPATCHER)
def switch_features_handler(self, ev):
datapath = ev.msg.datapath
ofproto = datapath.ofproto
parser = datapath.ofproto_parser
# Install Flow entry to the First Table (table_id=0)
cookie = cookie_mask = 0
table_id = 0
idle_timeout = hard_timeout = 0
priority = 1111
buffer_id = ofproto.OFP_NO_BUFFER
match = parser.OFPMatch(in_port=1, eth_dst='ff:ff:ff:ff:ff:ff')
next_table_id = 1
inst = [parser.OFPInstructionGotoTable(next_table_id)]
req = parser.OFPFlowMod(datapath, cookie, cookie_mask,
table_id, ofproto.OFPFC_ADD,
idle_timeout, hard_timeout,
priority, buffer_id,
ofproto.OFPP_ANY, ofproto.OFPG_ANY,
ofproto.OFPFF_SEND_FLOW_REM,
match, inst)
datapath.send_msg(req)
# Install Flow entry to the Second Table (table_id=1)
cookie = cookie_mask = 0
table_id = 1
idle_timeout = hard_timeout = 0
priority = 2222
buffer_id = ofproto.OFP_NO_BUFFER
match = parser.OFPMatch(in_port=1, eth_dst='ff:ff:ff:ff:ff:ff')
actions = [parser.OFPActionOutput(ofproto.OFPP_NORMAL, 0)]
inst = [parser.OFPInstructionActions(ofproto.OFPIT_APPLY_ACTIONS,
actions)]
req = parser.OFPFlowMod(datapath, cookie, cookie_mask,
table_id, ofproto.OFPFC_ADD,
idle_timeout, hard_timeout,
priority, buffer_id,
ofproto.OFPP_ANY, ofproto.OFPG_ANY,
ofproto.OFPFF_SEND_FLOW_REM,
match, inst)
datapath.send_msg(req)
---------
I refered to the sample codes of Ryu documentation.
- Flow Mod messages
(http://ryu.readthedocs.org/en/latest/ofproto_v1_3_ref.html#modify-state-messages)
- Instruction (e.g. OFPInstructionGotoTable)
(http://ryu.readthedocs.org/en/latest/ofproto_v1_3_ref.html#flow-instruction-structures)
>
> Thanks,
> Saman
>
>
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by Intel and developed in partnership with Slashdot Media, is your hub for all
things parallel software development, from weekly thought leadership blogs to
news, videos, case studies, tutorials and more. Take a look and join the
conversation now. http://goparallel.sourceforge.net/
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